The Mountain Studio All Mountain Stretch Mens Jacket 2026

Insulated jacket in a stretch fabric for resort skiing and snowboarding. The S-1 is the ideal solution for active skiers who prefer an insulated ski jacket but still demand premium performance.

The jacket features The Mountain Studio’s proprietary ALP-3 membrane technology, paired with a 60g lightweight PrimaLoft synthetic insulation layer in the body and a slightly thinner 40g layer in the arms. All this makes the jacket fully waterproof and windproof while being breathable. The outer stretch fabric and high-reach arm construction make the jacket both stretchy and comfortable, providing full mobility support. The jacket also features a ski pass pocket, a snow skirt and a large helmet-compatible hood.

The S-1 is the perfect choice for the resort-based skier who wants some extra warmth on cold days. The jacket is light, flexible, and just warm enough to take the edge off on cold mid-winter days at high altitude.

Materials

• 3-layer ALP-3 membrane
• 40 denier outer fabric, 85% nylon, 15% spandex
• PFAS-free DWR treatment
• PrimaLoft Gold insulation with stretch, 60 g in the body, 40g in the sleeves.
• YKK Aquaguard zippers

Features

- ALP-3 membrane stretch fabric
- 30,000/30,000 waterproof rating
- Waterproof, windproof and breathable
- Fully taped seams
- PrimaLoft Gold Eco synthetic insulation
- Two chest pockets
- Two hand pockets
- Ski pass pocket on sleeve
- Inside pocket compartments
- YKK Aquaguard Zippers
- Snow skirt
- High-reach arm construction for freedom of movement
- Ergonomic elbow shape
- Helmet-compatible storm hood with integrated visor, fully adjustable with draw cord.
- Signature sidecut hem
- Signature sidecut cuffs